URGENT developpement et reduction: A(x)=(-2x+1)x(3x-4) B(x)=(2x-5)² C(x)=(-3x+7)² D(x)=(x-2)²+3(x-2) E(x)=(x-1)x(-2x+4)+(x-1)x(x-5)
Mathématiques
helodeni
Question
URGENT developpement et reduction:
A(x)=(-2x+1)x(3x-4)
B(x)=(2x-5)²
C(x)=(-3x+7)²
D(x)=(x-2)²+3(x-2)
E(x)=(x-1)x(-2x+4)+(x-1)x(x-5)
A(x)=(-2x+1)x(3x-4)
B(x)=(2x-5)²
C(x)=(-3x+7)²
D(x)=(x-2)²+3(x-2)
E(x)=(x-1)x(-2x+4)+(x-1)x(x-5)
1 Réponse
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1. Réponse droopette
A(x)=(-2x+1)(3x-4)
=-6x²+8x+3x-4
=-6x²+11x-4
B(x)=(2x-5)²
=4x²-20x+25
C(x)=(-3x+7)²
=9x²-42x+49
D(x)=(x-2)²+3(x-2)
=x²-4x+4+3x-6
=x²-x-2
E(x)=(x-1)(-2x+4)+(x-1)(x-5)
=-2x²+4x+2x-4+x²-5x-x+5
=-x²+1